Filter



(No Model.) 4 Sheets-Sheet 1. J. F. ZIEGLBR.

FILTER No. 565,250. Patnted Aug. 4, 1896.

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J. F. ZIEGLER.

FILTER No. 565,250. Patented Aug; 4, 1896.

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J. F. ZIEGLER.

(No Model) FILTER.

No. 566,250. Patented Aug. '4, 1896.

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UNITED STATES PATENT OFFICE.

JOHN F. ZIEGLER, OF TOLEDO, OHIO.

FILTER.

SPECIFICATION forming part Of- Letters Patent No. 565,250, dated August4, 1896. Application filed December 28, 1893- Serial No. 494,939. (Nomodel.)

To all whom it may concern:

Be it known that I, JOHN F. ZIEGLER, of Toledo, county of Lucas, andState of Ohio, have invented certain new and useful Improvements inFilters; and I do hereby declare that the following is a full, clear,and exact description of the invention, which will enable others skilledin the art to which it appertains to make and use the same, referencebeinghad to the accompanying drawings, and to the figures of referencemarked thereon,

. which form part of this specification.

My invention relates to filters, and has for its object to provide alarge area of filteringsurface with a small filter-chamber, withconvenient means for cleaning the filter and disposing of the debris.

A further object is to provide for economy of construction andconvenience of assemblage of the parts.

The invention consists of the parts and combination of parts hereinafterdescribed, and pointed out in the claims.

In the drawings I have illustrated my invention as applied to theseveral forms of filters demanded by the trade, in which Figure 1 is aperspective view of a filter designed for ordinary family use, either inreduced size to be placed in the water-receptacle of an ordinaryrefrigerator or of larger size for general domestic purposes. Fig. 2 isa sectional elevation of the same. Fig. 3 is a perspective view of oneof the interiorly-chambered filtering-blocks. Fig. 4 is a rear elevationof one of the compressible cushions. Fig. 5 is an elevation of theconstruction shown in Fig. 1, with the cover removed and the casingbroken away to disclose the filtering-blocks in position and themechanism for holding them in place, with the cleaner in operativeposition. Fig. 6 is a sectional elevation of the same, showing thechamber for filtered water and the opening in the filtering-blocksthrough which the water passes to the chamber. Fig. 7 is a sectionalelevation of a well or cistern filter in which the present invention isemployed. Fig. 8 is a like View of a pressure-filter. Fig. 9 is anelevation of the cleaner employed for cleaning the sedimentary depositupon the filtering-blocks. Fig.

10 is a transverse sectional elevation of a chamberedfiltering-block,showing an lntegral brace for strengthening the sides toprevent collapse. Fig. 11 is an elevation of a slatted keeper forholding the blocks in position. Fig. 12 is a sectional elevation of afilter embracing the present invention and having means for cooling thewater. Fig. 13 is a sectional elevation on lines so :10, Fig. 12,showing the valleys for receiving the drip of cold water from thecooling-chamber. Fig. 14 is a plan view of the slatted keeper, showingrecesses to allow the same to pass the locking-arms and the pivotedplates for covering the recesses. Fig. 15 is a plan view of thesupplemental bottom employed in the cooling-filter.

In constructing a filter in accordance with my invention the greatobject to be attained is a filtering area of sufficient size to allow aa supply of filtered water equal to the demand without the necessity ofincreasing the size of the filter proper to an extent greater than thatin ordinary use. To this end there is employed a plurality ofinteriorly-chambered rectangular blocks placed in parallel relation toallow the unfiltered water ,to surround all but one edge of the same,

drawn either from a cock 4 or the pump 5.

(Shown in Fig. 7.) \Vithin each chamber 2 is arranged a plurality ofinteriorly-chambered rectangular filtering-blocks 6, each formed of aplastic porous material, rectangular in shape, and having an interiorchamber 7 of rectangular contour, whereby the inclosing sides are ofuniform thickness. Upon one edge of the block is an opening 8, throughwhich the filtered water passes from chamber 7 into chamber 3, and toproperly seal the opening from ingress of unfiltered water or egress offiltered water between the blocks there is formed a depression 9 aroundthe opening 8 to receive a compressible seal 10 upon a compressiblecushion 11.

The filteringblocks are secured within chamber 2, after beingplaced'side by side in parallel order, by means of slatted keepers 12,the slats 13 of which are of an equal width to that of the edge of thefiltering-blocks, and placed to coincide therewith when the blocks arein position, and bear upon the compressible cushions 11, with theeifect, when tightly forced against the cushions, of sealing the blocksfrom the passage of water to or from the same, except as it finds egressthrough openings 8, the cushions also conforming to the unevenness ofthe surface of the pottery filtering-block, and allowing'of greatpressure against the blocks to hold them in place, and also to compressthe seal tightly around opening 8.

The keepers are held closely against the cushions by means oflocking-arms 12, pivotally secured to the casing to be turned upon theirpivots in the arc of a circle whose radius is bisected by the plane ofmovement of the keeper, so that the arms increase in pressure upon thekeeper as they are moved upon their pivots. For guiding the arms thekeeper is provided with a channeled bar 14, into which the outer ends ofthe arms move, and for greater rigidity of the slats 13 of the keeperthey are made angular.

In the style of filter shown in Fig. 1 there is an angled plate 141, thevertical side of which has elongated openings 15, through which bolts 16pass, and the horizontal side 17 bears upon the upper ends of thefiltering-blocks to hold them from vertical displacement,whilespring-hooks 17 engage the edge of the keeper to hold the samevertically.

In the style shown in Figs. 12 and 13, the supplemental bottom 18 isplaced in chamber f, and comprises a plurality of fiat elevated portions18, having openings to coincide with openings 8 in the blocks, (whichare upon the flat portions 18,) and between the portions 18 are formedvalleys 19, substantially semicircular in cross-section, whereby whenthe ice is placed in chamber 2 the dripping and cooled water in saidchamber will cool the metal of the valleys, and thereby cool not onlythe water before entering the filteringblocks, but also the filteredwater in the chamber 3, the water from the valleys being drawn offthrough a drain 20, with which the valleys communicate. In thisconstruction the keeper is cut out upon the opposite sides to allow ofpassing the arms, and the bar 14: is pivoted to swing from over thecut-away portions until the keeper is placed upon the blocks and thenover the same to receive the ends of the arms. In order to furthercushion the blocks, in addition to cushions 11 there may be cushions 11upon the side opposite to the one having the springs 8,whereby theblocks are cushioned at each point of pressure.

In order to remove the deposit upon the sides of the filtering-blocksand to fully clean the chamber 2, there is a cleaner 21 employed,comprising a handle-rod 22, a head 23, and spring-arms 2 1, upon whichis secured brushes 25, preferably of aluminium wire, which, when thebrushes are reciprocated, remove the sedimentary deposit, which is thendrawn off through cocks communicating with chamber 2, the spring-armsautomatically adjusting to the wear of the brushes. I

In the cistern-filter,Fig. 7 ,and also the cooling-filter, there areair-pipes 26 to prevent a vacuum in drawing the water from chamber 3. InFig. 10 the filtering-block is shown asconstrueted with a brace 27,extending transversely across the interior chamber to prevent collapseunder great pressure.

It will be seen that I have prepared for adaptability to all the stylesof filters demanded by the trade, and that the parts are easilyassembled with provision for a maximum filtering area to a minimum areaof filtering-chamber.

lVhat I claim is-- 1. In a filter,a casing,a dividing-wall thereinforming a chamber for unfiltered water and a chamber for filtered Water,a series of rectangular filteringblocks in the chamber for unfilteredwater, said blocks resting against the bottom of the casin g and againstthe wall respectively,a slotted keeper bearing against the blocks, anangled plate secured to the wall having spring-arms to engage the upperedge of the keeper, the lower edge of the keeper having transversegrooves and arms pivoted to the bottom of the casing at one end, the opposite end engaging in the grooves, and a rod to force the arms togetherand the keeper forward against the filtering-blocks.

2. In a filter, a casing, a chamber for filtered and a chamber forunfiltered water therein, a series of filtering-blocks in the unfilteredwater-chamber, a cleaner for the blocks comprising a cross-piece, armsdepending therefrom between each set of filteringblocks,a U -shapedspring-holder of the length of the filtering-blocks secured upon thelower ends of the rods and brushes secured in each side of the holdernormally bearing against the filtering-blocks.

In testimony that I claim the foregoing as my own I hereby aifix mysignature in presence of two witnesses.

JOHN F. ZIEGLER.

it-messes WILLIAM WEBs'rER, CARROLL J VVEBsTER.

